I posted on a different thread previously, I have fixed that problem.
I have changed the logo size but it now seems to be over lapping the menu text, the logo also seems to be of a low resolution, like its being stretched, although I have uploaded the image in a suitable size.

Thanks so much! Last question, and this might not be possible; is it possible to use a tiling image as the pattern for the sidebar background, instead of a solid hex colour? Let me know if you’d like me to post this to a new thread